KFD 12V-24V Car Charger DC Adapter
4.3Editor score
Compatible with AirSense 11 and AirMini
Input voltage range 12V to 24V
Certified for safety and quality standards
In this guide
Finding reliable power is crucial for continuous positive airway pressure therapy when traveling or during outages. A good backup solution ensures your machine runs safely without interruption, protecting your health and sleep quality wherever you go.
We analyzed ten leading products based on compatibility, capacity, safety features, and real-world usability. Our selection includes dedicated battery packs, solar bundles, and essential adapters designed to work with major CPAP brands and models.
Each pick highlights specific strengths like runtime, portability, and charging options to match different needs. Please note that availability and pricing can change frequently, so verify details on the product page before purchasing to ensure you get the right fit.
Top 3 Picks for Best Battery Backup for Cpap Machine
EASYLONGER ES960 PRO CPAP Battery Backup
4.5Editor score
Includes 110W foldable solar panel
Provides up to three nights of runtime
LiFePO4 battery for long cycle life
EASYLONGER ES720 PRO Dual CPAP Battery
4.8Editor score
Total capacity over 540 watt hours
Includes digital display and wireless charging
Supports multiple device types simultaneously
Top 10 Best Battery Backup for Cpap Machine in 2026 Compared
This side by side comparison evaluates all ten products across key specifications to help you find the ideal power solution for your specific CPAP model and travel needs.
ProductsSpecificationsEditor scorePrice
Best Budget
KFD Car Charger Adapter
Input 12V to 24V DC
Output 24V 2.71A
Compatible with ResMed AirSense 11
Cable length 2.6 meters
4.3Editor score
Editor's Choice
EASYLONGER ES960 PRO Bundle
Battery capacity 297.6 watt hours
Includes 110W solar panel
Supports 12V 19V 24V output
LiFePO4 battery chemistry
4.5Editor score
Best Premium
EASYLONGER ES720 Battery
Battery capacity 266.4 watt hours
Includes 84W car adapter
Pass through charging capability
Four USB ports included
4.0Editor score
20V CPAP Power Cord
Input requires 20V PD output
Output 24V 2.71A
Compatible with AirSense 11
CE FCC RoHS certified
4.7Editor score
Pilot-24 Lite Charging Adaptor
Works with AirSense 11 only
Requires Pilot-24 Lite battery
Includes DC output cable
Essential travel accessory
4.0Editor score
EASYLONGER ES960 Solar Bundle
Includes ES960 battery
Includes 110W solar panel
Off grid power independence
Foldable solar design
4.5Editor score
EASYLONGER ES720 Dual Bundle
Two batteries included
Total capacity over 540Wh
Digital display on PRO model
Wireless charging capability
4.8Editor score
EASYLONGER ES400 AIR Bundle
Battery capacity 148 watt hours
Includes 110W solar panel
Plug and play setup
Multi device support
4.0Editor score
Medistrom Pilot-24 Lite Bundle
Battery capacity 95 watt hours
TSA approved for travel
Includes mask wipes
Up to 16 hours runtime
4.5Editor score
EASYLONGER ES720 PRO Kit
Battery capacity 276.48 watt hours
Includes car adapter
Digital display included
Complete portable kit
5.0Editor score
1. KFD 12V-24V Car Charger DC Adapter – Best Budget Power Adapter
KFD 12V-24V Car Charger DC Adapter
Input voltage 12V to 24V
Output power 65 watts
Compatible with AirSense 11
Cable length 2.6 meters
This adapter is a cost-effective solution for users who already own a power bank or station. It carries a 4.3 rating from verified buyers who appreciate its versatility with ResMed devices.
Pros
- Affordable price point
- Wide input voltage range
- Certified safety standards
- Long cable length
- Works with Power Stations
Cons
- Not a battery itself
- Requires external power source
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The adapter accepts input from 12V to 24V, making it highly compatible with various portable power sources. It outputs 24V at 2.71A which meets the power requirements for the AirSense 11 and AirMini models.
While it is not a standalone battery, it eliminates the need for proprietary power supplies when traveling with your own backup system. The main trade-off is that you must still purchase a battery source separately.
This product is ideal for travelers who want to use their existing portable power stations with their CPAP machines. It provides a reliable link between your power source and your therapy device.
Versatile Voltage Input
The wide input range ensures compatibility with most car chargers and portable power stations available on the market.
Certified Safety
CE FCC and RoHS certifications indicate that the product meets strict safety and environmental standards for electronic accessories.
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2. EASYLONGER ES960 PRO CPAP Battery Backup – Top All-in-One Kit
EASYLONGER ES960 PRO CPAP Battery Backup
Battery capacity 297.6Wh
Includes 110W solar panel
LiFePO4 battery technology
Up to 3 nights runtime
This kit stands out as a complete power solution for off-grid use with its integrated solar charging capability. It rates highly among users seeking independence from wall outlets during camping or emergencies.
Pros
- Includes solar panel bundle
- Long battery cycle life
- Wide device compatibility
- Multiple charging options
- Durable outdoor design
Cons
- Not TSA approved due to capacity
- Bulkier than pure batteries
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The ES960 PRO offers a capacity of 297.6 watt hours which supports three nights of therapy with the humidifier off. The LiFePO4 chemistry ensures safety and a longer lifespan than standard lithium batteries.
Travelers cannot take this on planes as it exceeds the 160Wh limit, but it is perfect for road trips or outdoor adventures. The solar panel allows for recharging even when grid power is unavailable.
If you need a robust system for extended trips where access to power is limited, this bundle offers excellent value and reliability. It combines high capacity with renewable energy potential for true independence.
Solar Energy Integration
The included 110W panel with MPPT technology efficiently converts sunlight into usable power for the battery pack.
Safety Features
Built-in Battery Management Systems protect against overcharging overheating and short circuits to ensure user safety.
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3. EASYLONGER ES720 PRO Dual CPAP Battery – Ultimate Power Capacity
EASYLONGER ES720 PRO Dual CPAP Battery
Total capacity 540Wh+
Includes digital display
Wireless charging capability
Supports dual batteries
This premium dual battery system provides unmatched runtime for users who need extended backup power for days at a time. It holds a top rating of 4.8 for its comprehensive features and reliability.
Pros
- Extremely long runtime
- Digital status display
- Multiple device charging
- Wireless charging included
- FSA HSA eligible
Cons
- Higher price point
- Two batteries add weight
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With a combined capacity of over 540 watt hours, you can expect up to six nights of therapy when using both batteries sequentially. The PRO model includes a digital display for real-time status updates.
The inclusion of wireless charging adds convenience for powering phones and other small devices alongside your CPAP machine. It is an ideal solution for long-duration emergency preparedness or remote work.
Buy this if you prioritize maximum runtime and versatility over portability. The ability to charge multiple devices simultaneously makes it a central power hub for your entire travel setup.
Extended Therapy Time
The dual battery setup ensures you can continue therapy for several nights without needing to recharge or find an outlet.
Smart Power Hub
USB ports and wireless charging pads allow you to power laptops tablets and phones while your CPAP runs.
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4. 20V CPAP Power Cord – Essential Adapter for Power Banks
20V CPAP Power Cord
Input 20V PD required
Output 24V 2.71A
Compatible with AirSense 11
CE FCC RoHS certified
This cord is a critical link for users connecting their CPAP machines to modern USB-C PD power banks. It has earned a strong 4.7 rating for its reliability and consistent power delivery.
Pros
- High compatibility rating
- Works with most power banks
- Low cost solution
- Compact and portable
- Reliable power delivery
Cons
- Requires specific 20V PD input
- Not suitable for other voltages
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It converts the 20V output from a power bank into the 24V needed by your ResMed device. The manufacturer recommends ensuring your power source can output at least 65W to avoid performance issues.
The primary consideration is ensuring your power bank supports the specific voltage required. If your bank only offers 5V or 9V output, this cable will not function properly without additional converters.
This is a perfect choice for travelers who have a high-capacity USB-C power bank already. It offers a direct and affordable way to keep your machine running while using existing gear.
Power Bank Compatible
Designed specifically to bridge the gap between standard USB-C PD power banks and CPAP power requirements.
Quick Setup
Simple plug and play connection that requires minimal setup time before your therapy session begins.
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5. Pilot-24 Lite Charging Adaptor – Dedicated ResMed Solution
Pilot-24 Lite Charging Adaptor
Requires Pilot-24 Lite battery
Compatible with AirSense 11
Includes DC output cable
Auto switch over on failure
This accessory is specifically designed to connect the Medistrom Pilot-24 Lite battery to AirSense 11 machines. It ensures seamless power transfer during outages without manual intervention.
Pros
- Reliable backup power
- Auto transfer on outage
- Compact design
- Certified Medistrom accessory
- Easy setup
Cons
- Limited to specific battery
- Short charging adapter included
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The adapter is essential for enabling backup power modes on your CPAP machine. It includes the necessary DC cable to link the battery pack to the device securely and safely.
Users should be aware that the battery itself is sold separately. The rating reflects its role as a functional accessory rather than a standalone power solution with extensive features.
Choose this if you already use the Pilot-24 Lite battery or plan to invest in that specific system. It guarantees compatibility and safety for your ResMed AirSense 11 therapy.
Seamless Transfer
The cable ensures that when main power fails, the system switches to battery power automatically without losing therapy settings.
Portable Therapy
Makes it easy to use your home machine outside the house with the dedicated power supply kit.
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6. EASYLONGER ES960 Solar Bundle – Renewable Power Kit
EASYLONGER ES960 Solar Bundle
Includes ES960 battery
Includes 110W solar panel
Off grid ready
Foldable solar panel
This bundle combines a reliable battery with a high-efficiency solar panel to create a self-sustaining power system for outdoor adventures. Users rate it highly for its ease of use in remote locations.
Pros
- Self-sustaining power system
- Foldable design
- Plug and play
- Ideal for camping
- High solar efficiency
Cons
- Weather dependent
- Not TSA approved
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The ES960 battery is paired with a 110W solar panel that folds compactly for transport. This setup allows you to recharge your power source naturally without relying on a car or wall outlet.
While it is robust for camping or emergency preparedness, the size makes it unsuitable for air travel. It is best used for RV trips or extended stays where power availability is uncertain.
Opt for this kit if you value energy independence and plan to spend significant time outdoors. The combination of battery storage and solar recharge offers long-term usability.
Off Grid Independence
The solar capability means you can travel to remote campsites without worrying about finding an electrical outlet.
Durable Design
The solar panel is designed to withstand outdoor conditions, ensuring it lasts through multiple trips.
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7. EASYLONGER ES720 PRO Dual CPAP Battery – Complete Road Trip Kit
EASYLONGER ES720 PRO Dual CPAP Battery
Includes car adapter
Full cable set included
276Wh battery capacity
Digital display
This kit is designed for road trips with a car adapter and full cable set to maximize convenience. It holds a perfect 5.0 rating for its comprehensive inclusion of every needed accessory.
Pros
- Perfect for road trips
- Car adapter included
- Complete cable set
- Digital display
- Carry bag included
Cons
- Expensive package
- Limited to road travel
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The battery is paired with a dedicated car adapter that allows you to power your CPAP from your vehicle's outlet. This ensures you can drive for long distances without worrying about battery depletion.
Everything needed for travel is included in the box, from cables to a carrying bag. This reduces the risk of forgetting essential components before a long journey or camping trip.
Select this option if you frequently travel by car and want a guaranteed power solution for your CPAP machine. It simplifies the setup process with a complete ready-to-use package.
Road Trip Ready
The inclusion of a car adapter allows you to keep your machine running during long highway drives.
Complete Package
All cables and adapters are provided, ensuring you have everything needed to power your specific CPAP model.
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8. EASYLONGER ES400 AIR Bundle – Lightweight Solar Option
EASYLONGER ES400 AIR Bundle
Battery capacity 148Wh
Includes 110W solar
Lightweight design
Multi-device support
This bundle offers a lighter alternative for users who want solar capabilities without the weight of larger battery systems. It is a solid choice for short outdoor trips with moderate power needs.
Pros
- Lighter than PRO models
- Solar included
- Plug and play
- Supports multiple devices
- Portable
Cons
- Lower capacity
- Shorter runtime
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The 148Wh battery is compact and easy to carry while still providing enough power for a night or two of therapy. The solar panel allows for recharging if you plan to stay outside for more than one night.
Because the capacity is lower than the larger models you may need to monitor your usage more closely if the humidifier is on. It is best suited for dry therapy or short duration travel.
Choose this if you prioritize portability over extended multi-night runtime. It balances weight and functionality well for occasional campers or weekend travelers.
Lightweight Design
The reduced weight makes it easier to pack into a backpack or carry-on compared to larger power stations.
Versatile Power
Supports your CPAP and other small electronics like phones and tablets during your trip.
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9. Medistrom Pilot-24 Lite Bundle – Compact Travel Solution
Medistrom Pilot-24 Lite Bundle
95Wh battery capacity
TSA approved
Includes mask wipes
Compact 1.3 lbs
This is one of the few options that is approved for air travel due to its compact size. It is ideal for business travelers or vacationers who need to carry their power on a plane.
Pros
- TSA approved
- Lightweight
- Includes wipes
- Up to 16 hours
- Reliable brand
Cons
- Lower total capacity
- Requires extra cables for some models
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At 95Wh, it offers a substantial runtime of up to 16 hours which covers a single night comfortably. The bundle includes mask wipes for hygiene while on the road adding extra convenience.
While the capacity is lower than larger battery stations, it is sufficient for overnight trips where you can recharge at the destination. The lightweight nature makes it easy to pack in carry-on luggage.
Buy this if you need reliable power for flights or short trips without checking a bag. It is the best choice for travelers prioritizing portability and airline compliance.
Airline Compliance
Its weight meets international airline regulations for portable lithium batteries so you can take it on board.
Hygiene Bundle
The included wipes help keep your mask clean while traveling, ensuring comfort and hygiene on every trip.
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10. EASYLONGER ES720 Battery – Balanced Power Solution
EASYLONGER ES720 Battery
266.4Wh capacity
Includes car adapter
Pass-through charging
Eight cables included
This battery offers a strong balance of capacity and versatility with pass-through charging support. It rates well for users who want to recharge the battery while simultaneously powering their CPAP machine.
Pros
- High capacity
- Pass-through charging
- Many cables included
- FSA eligible
- Dual mode
Cons
- No solar included
- Bulkier than 400 model
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With 266.4Wh of power, it can last multiple nights without the humidifier. The inclusion of a car adapter allows for flexible charging via wall outlets or vehicle sockets on the go.
The pass-through feature is useful for emergency situations where you might need to keep the machine running while the battery charges. It provides peace of mind for those concerned about power availability.
This product is well suited for camping or emergency preparedness where you need reliable multi-night power. It is a robust choice for users who do not need solar but want high capacity.
Pass-Through Charging
You can plug the battery into an outlet while using the output port to run your device so therapy never stops.
Universal Compatibility
The set includes multiple cables so it works with most major brands of CPAP machines and backup devices.
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Buying Guide – How to Choose the Best Battery Backup for Cpap Machine
Selecting the right battery backup requires understanding your specific CPAP model, travel habits, and power needs. This guide outlines the critical factors to consider before purchasing.
Compatibility
Ensure the power adapter or battery pack supports your specific machine model. Many devices have unique voltage requirements and connectors that must match exactly to function correctly.
Check the product description to confirm it explicitly lists your CPAP brand and model number.
Capacity
Battery capacity measured in watt hours determines how long your machine will run without a power source. Calculate the hours you need based on how long you plan to travel or be without grid power.
Higher capacity means longer runtime but also adds weight and bulk to your luggage or campsite setup.
Recharge Options
Consider how you will recharge your battery during trips. Some units support solar panels while others rely on car adapters or wall outlets depending on your planned activities.
Having multiple recharge options ensures you can recover power even in remote locations without electricity.
Travel Limits
Airline regulations restrict battery sizes to 100 watt hours for carry-on luggage. If you fly frequently, choose a backup that falls within this limit to avoid complications at security.
Batteries larger than this limit are excellent for ground travel but will require checking in or special handling.
Safety Features
Look for built-in Battery Management Systems that protect against overheating overcharging and short circuits. These safety features are crucial for ensuring the reliability and longevity of your device.
Certifications from recognized bodies like UL or CE provide additional assurance of product quality and safety.
Accessories
Check if the package includes all necessary cables and adapters for your device. Some bundles are complete kits while others may require you to buy specific cables separately.
Having the right connectors included saves time and avoids the hassle of hunting for compatible adapters later.
Usage Environment
Decide if you need a rugged outdoor solution or a sleek travel accessory. Outdoor bundles often include solar panels and weather-resistant designs for camping and emergency preparedness.
Lightweight and compact units are better suited for hotels and business trips where space and weight are limited.
Price and Value
Compare the total cost including accessories to ensure you get the best value for your money. A higher initial price might be worth it if it includes essential components like solar panels or car adapters.
Investing in a quality battery now can prevent unexpected costs or interruptions to your therapy later on.
How to Use and Care for Your Battery Backup for Cpap Machine
Before your first trip fully charge the battery to 100 percent using the provided charger. This ensures you have maximum capacity and calibrates the battery management system accurately.
Always test the connection with your CPAP machine while you still have access to mains power. Verify that the machine turns on and runs normally before you leave home.
Store the battery in a cool dry place when not in use to maintain its health. Avoid leaving it discharged for long periods and recharge it every few months if unused.
Frequently Asked Questions
Does a battery backup work with heated humidifiers?
Most battery backups work best with heated humidifiers turned off because humidifiers consume significant power. Using a humidifier can reduce runtime significantly, so check your specific battery capacity and adjust settings accordingly for longer trips.
How do I know if my CPAP needs 20V or 24V?
Check the label on the original power supply that came with your machine to determine the required voltage. Matching this voltage is crucial for safe operation and using the wrong adapter can damage the device.
Can I take a battery backup on an airplane?
Yes, but most airlines allow lithium batteries under 100 watt hours in carry-on bags. Larger batteries must be checked or may require special approval, so always verify with your airline before booking.
How long does a typical battery last during one night?
A standard backup battery with 200 watt hours will typically last one night of therapy with the humidifier off. Actual runtime depends on pressure settings and whether heating elements are used during the night.
Do I need a special adapter for solar charging?
Some batteries come with solar panels and the correct cables already included in the bundle. For other units you may need to ensure the solar panel output matches the battery input requirements.
What happens if the battery runs out during the night?
Your CPAP will simply stop functioning like it would during a standard power outage. Having a fully charged battery and a backup plan ensures you can resume therapy safely the next day.
Are car adapters safe for continuous driving?
Most car adapters are safe for use while driving, but ensure the connection is secure to avoid interruptions. The battery may also charge while plugged into the car outlet depending on the system.
Can I use a regular power bank?
Standard power banks usually do not output the correct voltage for CPAP machines. You will need a specific adapter and a power bank that supports the required wattage and voltage to work safely.
Final Thoughts on Choosing the Best Battery Backup for Cpap Machine
We have reviewed ten reliable options ranging from portable travel packs to large off-grid systems. Whether you need a compact unit for flying or a solar kit for camping there is a solution for every traveler.
Prioritize compatibility and capacity when making your choice. Ensure the system supports your specific CPAP model and provides enough runtime for your planned activities without the humidifier.
Prices and availability can fluctuate so check current details on the product pages before purchasing. Having a reliable power solution ensures your therapy continues uninterrupted no matter where you are.